单项选择题

A.’SQL ALTER DATABASE OPEN’；B.SQL ALTER DATABASE ’OPEN’……

RMAN enables you to open the target database when it is already mounted. Which command must you execute at the RMAN prompt to open the database？（）

A.’SQL ALTER DATABASE OPEN’；
B.SQL ALTER DATABASE ’OPEN’；
C.OPEN DATABASE；
D.DATABASE OPEN

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热门试题

单项选择题Whichofthefollowingcommandscannotbeexecutedwhenthedatabaseopen？（）

A.RECOVER DATABASE
B.RECOVER TABLESPACE
C.RECOVER DATAFILE
D.ALTER DATABASE RECOVER DATAFILE

单项选择题Whichofthefollowingviewsmustyouquerytoidentifyanycorruptdatafileblocksthathavebeendetectedduringbackupsetcreation？（）

A.V$COPY_CORRUPT
B.V$COPY_CORRUPTION
C.V$BACKUP_CORRUPT
D.V$BACKUP_CORRUPTION

单项选择题Whichdatadictionaryviewsdisplaystheerrorinformationrelatedtoadatafile，whenaninternalreadfailsonthatfile？（）

A.V$DATAFILE
B.V$DATAFILE_HEADER
C.DBA_DATA_FILES
D.V$DBFILE
E.V$DATAFILE_ERRORS

单项选择题AfteranumberofdayssetbytheparameterCONTROL_FILE_RECORD_KEEP_TIME，theinformationinthecontrolfileisoverwrittenbyRMAN.Whatisthisparameter’sdefaultvalue？（）

A.1 day
B.5 days
C.7 days
D.31 days

单项选择题WhichofthefollowingstepsisincorrectinthefollowingsequenceofenablingtheARCHIVELOGmodeofadatabase？（）

A.Shut down the database.
B.Set the appropriate parameters in init.ora file.
C.Start the database in NOMOUNT state.
D.Issue the ALTER DATABASE ARCHIVELOG command.
E.Open the database.
F.Take a full closed backup.